Do you think it’s rude when people ask for a tip?

I got my eye brows threaded at the mall and it literally only took about a minute, I was planning on tipping. I go to pay and I pay with my card and add a tip on the receipt. The lady rudely says to me, can’t you tip with cash?? I told her I didn’t have any cash I only had my card and she didn’t answer me and kinda rolled her eyes. I felt like that was rude, I tipped her, she got a tip I just feel like it was rude of her to give me attitude for not tipping her the way she wanted to be tipped all for a minute of her time. Not saying she didn’t deserve to be tipped but it’s not mandatory and she should be grateful for any kind of tip she gets in my opinion.